Excavating-dipper.



W. S. MGKEB @L M. VLAS.

BXUAVATING DIFFER.

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W. S. MUKBE n P. M. VILAS. BXGAVATING' mPPBR.

APPLICA'ION FILED JA'N. 9, 1911.. c

30@ L?, Patented Aug. 5&3, 1911.

, of suitable ribs upon the backl vportion of the ldurable clipper body wllvbe procured.

19, which ears reeeiye the lower end of the. bail for lifting the flipper, the same not being shown in the drawing. The base portion of these ears is so placed upon the body portion that it extends upon each side of the joint at which the two parts are secured together, and the same 1s secured to the dipper body by two lines of rivets 20, 21, from which it will be seen that the base portion of the ears serves as an additional securing means for securing the front and back portions'of the dipper body together. l The back portion of the dipper body is provided with a pair of lugs 22 which serve as a hinge for securing the swinging bottom 23 to thedipper, and with other pairs of lugs 24, 25 to which the arms are connected by means ofv which the dipper is operated, all these lugs being formed integral with the back portion as the same is cast, and thelngs beingconnected with one another by means dipper, these ribs being for' the purpose of imparting .additional strength to the backI and lugs, the'number and arrangement of' the ribs being a matter of desire.

Suchv being the construction of our im`l proved dipper body, it will be seen that the same is formed'of two pieces only, and by ordinary' casting operations, and, from the nature of the material, it will be understood that when the parts are lformed from manganeseV steel an 'extremely strong and It will be. obvious from the construction disclosed that the two parts are very securely held together by the scheme of riveting employed, so that the dipper body 'in its finished form will be as strong as though formed in a single piece.

Having thus described our invention, we claim and desirevto secure by Letters Patent 1. A dipper for excavating or dredging -machines, the body portion of which is made l n p of two'parts formed from cast metal and secured together to'thereby form a. unitary Leonesa ing mechanism of the dipper maybe connected.

2. A dipper for excavating or dredging machines, the body portion of which is made up of two parts formed from cast metal and secured together to thereby form a unitary body poltion, each part comprising approximately one-halt of said body portion and said parts being joined on a plane extending lo 'tudinally of said body portion, one of sai parts being provided with a plurality of lugs formed integral therewith and to which the operating mechanism of the dipper may be connected.

3. A dipper for excavating or dredging machines, thebody portion of which is made up of'two parts formed' from cast metal and securedtogether to thereby form a unitary body portionfsaid parts being joined-on a plane extending longitudinally of said body' portion, and ears to which a bail may be connected, said ears having each' a flange portion extending across the joint between said parte, and the same being secured to 'the body portion by fastening device located upon either side of the body portions. i

` Signed at Chicago, in the county of- Cook,

joint'between said yand State of Illinois, this 29th day of December, 1910. v

` WALTER S. McKEEl lllVitnesses:l

B; F. CLARK, Jr., kpEUGingne C. BAUER.

vSigned at Minneapolis, in the county of Hennepin, and State of Minnesota, this 3d dayofdanuary, 1911. PERCIVAL M. VILAS.'

Witnesses:

JOHN C. SWEET, JAMES S. GARLAND. 

